It depends. If you mean the black one than it IS Toothless. But if you mean the one at the end, it's R.D. (or Red Death)
Toothless
'ChangeWing' .
nightfury and the queen or king dragon
In how to train your Dragon, Hiccup's Dragon is a Night Fury. Hiccup named it "Toothless".
Hiccup's girlfriend's name is the rider of Deadly Nadder, Astrid.
It's called a Changling Hope this helped :)
How to Train Your Dragon was created in 2003.
How to Train Your Dragon was produced by Dreamworks animation.
Go and train your dragon then it will have attacks.
knucker
2010
It is How To Train Your dragon. I believe it is spirited away